Air quality index [µg/m3]:
excellent ≤ 20
good ≤ 60
lightly polluted ≤ 100
moderately polluted ≤ 140
heavily polluted ≤ 200
severely polluted > 200
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
110084lightly pollutedexcellent101excellent
100063lightly pollutedexcellent101excellent
090069lightly pollutedexcellent101excellent
080070lightly pollutedexcellent91excellent
070070lightly pollutedexcellent91excellent
060062lightly pollutedexcellent61excellent
050060goodexcellent61excellent
040075lightly pollutedexcellent71excellent
030064lightly pollutedexcellent61excellent
020062lightly pollutedexcellent91excellent
010069lightly pollutedexcellent91excellent
000068lightly pollutedexcellent81excellent
230063lightly pollutedexcellent91excellent
220066lightly pollutedexcellent71excellent
210070lightly pollutedexcellent61excellent
200034goodexcellent41excellent
190030goodexcellent41excellent
180031goodexcellent41excellent
170017excellentexcellent31excellent
160014excellentexcellent21excellent
15009excellentexcellent11excellent
14009excellentexcellent11excellent
130011excellentexcellent21excellent
120012excellentexcellent21excellent